A hairball type ti 3 c 2 Preparation methods and applications of (mxene) nanomaterials
A technology of nanomaterials and hair balls, applied in the direction of nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve the problem of low material quality, achieve simple process, good electrochemical performance, and fluffy surface Effect
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Embodiment 1
[0024] The hairball type Ti of the present embodiment 3 C 2 (MXene) nanomaterial preparation method, the steps are as follows:
[0025] (1) Add 1g precursor Ti 3 AlC 2 Add (MAX) to 120 ml HF, stir magnetically at room temperature for 72 hours, centrifuge and wash until neutral, collect the precipitate, and dry at 60°C to obtain a black powder, which is two-dimensional Ti 3 C 2 (MXene) materials;
[0026] (2) Add 100 mg Ti 3 C 2 The material was added to a solution containing 30 ml 1 M NaOH and 0.68 ml 30 % H 2 o 2 In the mixed solution, stir evenly. Then, hydrothermal treatment was carried out at 140 °C for 12 h, and the precipitate was collected by centrifugation, and the obtained powder sample was dried at 60 °C for 12 h to obtain hairball-type Ti 3 C 2 (MXene) nanomaterials, denoted as NT.
[0027] Experimental process such as figure 1 As shown, the SEM images and electrochemical spectra of the prepared nanomaterials are shown in figure 2 and image 3 shown....
Embodiment 2
[0029] The hairball type Ti of the present embodiment 3 C 2 (MXene) nanomaterial preparation method, the steps are as follows:
[0030] (1) Add 1 g precursor Ti 3 AlC 2 (MAX) was added to 120 ml solution, magnetically stirred at room temperature for 72 hours, centrifuged and washed until neutral, the precipitate was collected, and dried at 60°C to obtain a black powder, which was two-dimensional Ti 3 C 2 (MXene) materials;
[0031] (2) Add 100 mg Ti 3 C 2 (MXene) material was added to the solution containing 30 ml 1 M potassium hydroxide and 0.68 ml 30% H 2 o 2 In the mixed solution, stir evenly. Then, hydrothermal treatment was carried out at 100 °C for 12 h, the precipitate was collected by centrifugation, and the obtained powder sample was dried at 60 °C for 12 h to obtain the hairy-shaped Ti 3 C 2 (MXene) nanomaterials, denoted as KT.
[0032] Experimental process such as figure 1As shown, the SEM images and electrochemical spectra of the prepared nanomaterial...
Embodiment 3
[0034] The hairball type Ti of the present embodiment 3 C 2 (MXene) nanomaterial preparation method, the steps are as follows:
[0035] (1) Add 1 g precursor Ti 3 AlC 2 Add (MAX) to 120 ml (LiF-HCl), stir magnetically at room temperature for 72 hours, centrifuge and wash until neutral, collect the precipitate, and dry at 60°C to obtain a black powder, which is two-dimensional Ti 3 C 2 (MXene) materials;
[0036] (2) Add 100 mg Ti 3 C 2 (MXene) material was added to a solution containing 30 ml 0.5 M KOH and 0.34 ml 30 % H 2 o 2 In the mixed solution, stir evenly. Then, hydrothermal treatment was carried out at 140 °C for 12 h, the precipitate was collected by centrifugation, and the obtained powder sample was dried at 60 °C for 12 h.
[0037] Experimental process such as figure 1 As shown, the SEM images and electrochemical spectra of the prepared nanomaterials are shown in Figure 5 and image 3 shown.
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